only need a page
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2
main.c
2
main.c
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@ -127,7 +127,7 @@ process0()
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iunlock(p0->cwd);
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// dummy user memory to make copyproc() happy
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p0->sz = 4 * PAGE;
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p0->sz = PAGE;
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p0->mem = kalloc(p0->sz);
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// fake a trap frame as if a user process had made a system
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